Ganrude says the man was moving sand on Dakota Island, across from the city of Dakota, when the bulldozer became stuck in the river about 1:30 a.m. Ganrude says the man acknowledged operating the machine for a construction company working on a bridge-construction project.

Authorities say the man used a boat to get back to the mainland. A crane had to be brought in to recover the bulldozer.

The man was cited with first-degree DWI and refusal to take a sobriety test.